<template>
  <div class="dropdown" ref="dropdownRef">
    <a href="#" class="btn btn-outline-light my-2 dropdown-toggle" @click.prevent="toggleOpen">{{
      title
    }}</a>
    <ul class="dropdown-menu" :style="{display:'block'}" v-if="isOpen">
        <slot></slot>
    </ul>
  </div>
</template>
<script lang="ts">
import { defineComponent, ref, watch } from "vue";
import useClickOutside from "../useClickOutside"
export default defineComponent({
    name: 'Dropdown',
    props: {
        title:{
            type: String,
            require: true,
        }
    },
    setup() {
        const isOpen = ref(false)
        const dropdownRef = ref<null | HTMLElement>(null)
        const toggleOpen = () => {
            isOpen.value = !isOpen.value
        }
        const isClickOutside = useClickOutside(dropdownRef)

        watch(isClickOutside, () =>{
            if(isOpen.value && isClickOutside.value){
                isOpen.value = false
            }
        })
        return {
            isOpen,
            toggleOpen,
            dropdownRef
        }
    }
});
</script>